This video covers the Taming the Beast quest chain from the point just prior to Thotar gives you a taming Rod for just a Dire Mottled Boar in Razor Hill. Thotar gives you a series of 3 taming rods, every one is different and will allow you tame beasts in the next order: Dire Mottled Boar, Surf Crawler and eventually an Armored Scorpid.

Once you've finished the taming read this article Component of the Quest chain, you have got to head to Orgrimmar and speak to Ormak Grimshot while in the Valley of Honor in order to unlock your pet managing capabilities: Tame Beast; Feed Pet; Revive Pet; and Beast Training.

Ultimately, do not forget to go to the Pet Trainer and grab the Pet abilities that you have got to give to your companion pet.